Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10774808 | Method of operating a wind turbine without grid connection and wind turbine | Patrick Achenbach | 2020-09-15 |
| 7787266 | Method for operating a frequency converter of a generator | Detlef Menke | 2010-08-31 |
| 7586206 | Wind turbine and method for operating same | Werner Gerhard Barton, Robert William Delmerico, Nicholas Wright Miller | 2009-09-08 |
| 7504738 | Wind turbine and method for operating same | Werner Gerhard Barton, Robert William Delmerico, Nicholas Wright Miller | 2009-03-17 |
| 7471011 | Wind turbine over-voltage exposure | — | 2008-12-30 |
| 7471007 | Method for operating a wind power plant and method for operating it | Andreas Bücker, Henning Lütze | 2008-12-30 |
| 7321221 | Method for operating a wind power plant and method for operating it | Andreas Bücker, Henning Lütze | 2008-01-22 |
| 7168251 | Wind energy turbine | — | 2007-01-30 |
| 6921985 | Low voltage ride through for wind turbine generators | Henning Luetze, Andreas Buecker, Till Hoffmann, Ralf Hagedorn | 2005-07-26 |
| 4981510 | Process and apparatus for the production of ferrochromium | Klaus Ulrich | 1991-01-01 |
| 4722710 | Life preserver | Klaus Hagen, Heinz Milbrath | 1988-02-02 |
| 4629506 | Process for the production of ferrochromium | Klaus Ulrich, Dieter Neuschuetz, Thomas Hoster, Hermann Doerr, Dietrich Radke | 1986-12-16 |
| 4599068 | Apparatus for preheating granular ore | Klaus Ulrich | 1986-07-08 |
| 4581061 | Method for reducing oxidic iron ores in a rotary kiln | Klaus Ulrich | 1986-04-08 |
| 4576638 | Process for the production of ferromanganese | Hermann Doerr, Thomas Hoster, Dieter Neuschuetz, Dietrich Radke, Klaus Ulrich | 1986-03-18 |
| 4389040 | Apparatus for separating a sponge iron product produced in a rotary furnace | Klaus Ulrich, Reinhard Herbrig | 1983-06-21 |
| 4353534 | Apparatus for supplying gas to a revolving cylindrical furnace | Henri F. Seelig | 1982-10-12 |
| 4209322 | Method for processing dust-like matter from metallurgical waste gases | Karl-Heinrich Vopel, Gunter Meyer | 1980-06-24 |
| 4189314 | Method of utilizing waste dust and waste sludge from blast furnaces and steel works | Ludwig Fiege, Hans-Werner Hohle, Klaus Ulrich | 1980-02-19 |